Derek is a fox who is the main focus in "Fires and Liars". He owns a SAVO watch and he is best friends with Scott, a bear.
It is shown in "Kitty's Surprise Party" that Derek shares the same birthday as Ranger Kitty (who, as his mother mentions, is his favorite Danger Ranger).
Derek is voiced by Justin Cowden in both appearances.
- Fires and Liars (first appearance)
- Kitty's Surprise Party
- Fallbot Forget Me Not (song segment from "Fires and Liars" reused)